Combined printing and color-applying element and method of manufacturing the same



May 5, I931. w. MACDONALD COMBINED PRINTING AND COLOR APPLYING ELEIENTAND METHOD OF MANUFACTURING THE 5mg; Filed April 1'7, 1929 INVENTOR.

Willz'a'mllacdomi BY ATTOR EY.

35 pressible,

Patented May 5, 1931 WILLIAM MACDONALD, or Denn son, oHIo COMBTNEDPRINTING- AND COLOR-AFPLYING ELEMENT AND AGTURING THE SAME Applicationfiled. April 17,

This invention relates to a combined printing and color applyingelement, as well as the method of manufacturing the same, and theinvent-ion'has for its object to provide, in a manner as hereinafter setforth, a printing form, plate or cylinder having interposed therein andas a part thereof, a color applying means for automatically applyingcolor, when desired to the work during the operation of printing thelatter from the form,

plate or cylinder.

' As is wellknown in the art of printing, especially in newspaper work,a cylindrical printing form or plate is cast with its impressingportions derived froman asbestos form which Surrounds and is capable ofsnapping away from theform or, plate after the casting has beencompleted. One of the objects of the invention is to removably combinewith the form or plate, one or more solid dummies, each correspondinginarea to and providing openings when removed from the casting for thereception of a color applying means to form a part of the combinedprint-5 ing and color applying element.

A further object of the invention is to provide, in a manner ashereinafter set forth, a new and novel form of color applying means forinsertion into the body of and be bodily carried by a printing plate,form or cylinder.

A further object of the invention is to provide, in a manner ashereinafter set forth,

a new and novel form of color applying means including a springcontrolled, de-,

normally seated discharge means capable of being shifted to openposition for the application of color to the work during the operationof the bed cylinder and the printing form of the press or machineon thepassage of the work between the bed cylinder and the printing form.

Further objects of the invention are to provide, in a manner ashereinafter set forth,

a'color applying means for the purpose referred to which is simple inits construction and arrangement, strong, durable, thorough- 1yeflicient in its use, readily installed with respect to a printingcylinder, form or plate and inexpensive to manufacture.

With the foregoing and other objects in characters Mn'rnon or MANU?1929. Serial No. 355,821.-

view the invention consists of the novel construction, combination andarrangement of parts as hereinafter more specifically described, andillustrated in the accompany ingdrawings, wherein is shown an embodimentof the invention, but it is to be under? stood that changes, variationsand modifications can be resorted to which fall within the scopeof theclaims hereunto appended.

In the drawings wherein like reference denote. corresponding partsthroughout theseveral views Figure 1 is a fragmentary view in section ofa printing roll'or plate of cylindrical form provided with anopeningclosed by aremovable dummy or block. 7

Figure 2 is a fragmentary view in longitudinal section ofa combinedprintingand color applying element in accordance with thisinvention. I 1

Figure 3 is a fragmentary View in top plan of a combined printing andcolor applying element in accordance with this invention.

Figure 4 is a fragmentary view partly in section and elevationillustrating a combined printing and color applyingelement inaccordance'with this invention arrangedin position with respect to a bedroll between which and the element the work is adapted to pass. Theprinting plate, form or cylinder 1 is cast from'lead in a known manner,and during the casting operation one or more me.- tallic blocks 2,termed dummies are secured to and surrounded by the body of the cast.-ing. The dummy 2 is of the desired length and is of slightlylessthicknessthanthat of the body of the casting, so that the lead willextend around the edges of the dummy and not weaken the casting. Theends of the dummy 2 are oppositely'bevele'd. Theonterand inner faces ofthe dummy 2 conform in contour to the outer and inner faces of thecasting which provides the printing plate, form or cylinder 1. When thedummy ordummics 2 is or are removed, the printing plate, form orcylinder 1 is provided with one or more openings 3 of an area to snuglyreceive a' spring controlled color applying device-0r means'which,whenin position is bodilycar- 100 the color, and'each outlet is controlledby a normally seated, spring controlled valvular means therefor, andwith said means ex- 7 tended from the color applying device'to beengagedand pressed inwardly. by the bed roller 4 of the press, duringthe operation of the form 1 and roller 4 and when the work,

not shown is travelling between the form 1 and roller 4 to be compressedfrom form 1.

The opening 3 provided by dummy 2 when the latter is removed conforms incontour to the color applying device referred to generally at 5. Theoppositely disposed beveled ends of the dummy 2 are indicated at 2. Thecolor applying device conforms in contour to that of the dummy 2 andcomprises a receptacleincluding a body portion open at its rear. Thebody portion consists of an outer wall 6, a pair of side walls 7 8, apair of end walls 9, 10. A closure plate 11 is employed for closing therear of the body portion, and a sealing strip or gasket 12 is interposedbetween the plate 11 and the rear edgesof the side and end walls. Theouter Wall 6 of the receptacle is integral with the side and end walls.

'When the device 5 is mounted in opening 3 the outer wall or front ofthe receptacle is slightly inset with respect to the outer face offorml. The receptacle in connection with the closure plate 11 provides areservoir adapted to contain a body-of a liquid coloring medium 13.

The color applying device 5 is illustrated as being provided with aseries of valve controlled discharge means for the color medium l3,'butit is to be understood that the number thereof can be decreased ordiminished. Each of the valve controlled discharge-means consists of asleeve 14 having a reduced, peripherally threaded outer portion 15 andwith the outer end of said portion 15 inset as at 16 to provide a stopfor a globular valve17 which is arranged within the sleeve 14. Theforming of the sleeve 14 with the reduced outer portion 15 provides-ashoulder 18.

' Arranged within the sleeve 14 and bearing against the valve 17 is acoiled spring 19 which is retained within the sleeve 14 by 7atransversely extending retaining pin '20.

The outer wall or front wall 6 of the receptacle is formed with a numberof openings corresponding to the number of the sleeves 14 and as shownthe wall 6 has three spaced openings as indicated at 21. The wall ofeach of said openings is threaded. The reduced portion 15 of the sleeve'14 extends through an opening 21 and threadedly en 7 when closedproiect slightly beyond theouter face of the form 1.

The invention provides for the color applying device being interposed inthe form 1 and further provides when the form 1 is cast to have it-setup with openings of the desired area to snugly receive the colorapplying means ordevice.

When the valve or valves 17 is or are depressed the suction created bythe revolving of the roller 4 Will assist in the feed of the colormedium 13 which also will feed by gravity when the valve or valves 17 isor are depressed inwardly to provide for the opening of the outer endorends of the sleeve or sleeves.

The plate 11- is removably connected by the hol-dfast devices 22 toenable the convenient filling of the receptacle when required. Thereceptacle will be Wedgingly secured to the end walls of the openings 3.On discharge of the liquid 13 it will be conducted by the sleeveorsleeves towards the work and will be applied on the latter when avalve or the valves is or are depressed.

It is thought the many advantages of a combined printing and colorapplying element in accordance with this invention, as well as themethod of manufacturing the same can'be readily understood, and althoughthe preferredembodiment of the invention is as illustrated anddescribed, yet it is to be understood that changes in the details can behad which fallwithin the scope of the invention as claimed.

lVhat I claim is 1. ifi'method of manufacturing a combined printing formand color applying element consisting in casting a printing form arounda removable bevelled end dummy correspondthat of a color applying 111gin contour to device, removing said dummy to provide a color applyingdevice receiving opening, and then securing in said opening a colorliquid reservoir having valve controlled outlet means projecting beyondthe outer face of the form.

2. A method of manufacturing a combined printing form and color applyingelement consisting in casting a printing form around a removable dummycorresponding in contour to that of a color applying device, removingsaiddummy to providea color applyng device receiving opening, andpositionin 1n abutting relation with respect to the walls of saidopening and inwardly of the outer face of the form a color liquidreservoir having valve controlled outlet'means projectingbeyond theouterface of'the form.

'3. Incombination a printing form having an opening, a receptacleconstituting a color beveled, said receptacle conforming in conliquidreservoir positioned in said opening,

tour to the shape of said opening and snugly one or more sleeves securedin the out-er Wall engagingthe wall of the'latter.

of said receptacle to provide color outlet In testimony whereof, I aifixmy signature means, and depressible, spring controlled hereto.

valves mounted in said sleeves for normally closing them and projectingbeyond the outer face of the form in the path of a depressing meanstherefor to open the sleeves for discharge.

4:. A color applying device comprising a receptacle adapted to bemounted in and having its outer face conforming in contour to the outerface of a p-rintingform, said receptacle providing a color'liquidreservoir, a sleeve secured to and extending through the outer Wall ofthe receptacle and providing for discharge of color from the latter, anda depressible, spring controlled valve carried by said sleeve fornormally closing it and adapted to normally project inthe path of adepressing means therefor to open the sleeve for discharge of color.

5. A color applying device comprising a receptacle adapted to be mountedin and. having its outer face conforming in contour to the outer face ofa printing form, said receptacle providing a color liquid reservoir, a

sleeve secured to and extending through the outer Wall of the receptacleand providing for discharge of color from the latter, and a depressible,spring controlled valve carried by said sleeve for normally closing itand adapted to normally project in the path of a depressing meanstherefor to open the sleeve for discharge of color, said receptaclehaving a removable inner Wall carrying a sealing member.

6. A color applying device comprising a receptacle adapted to be mountedin and having its out-er face conforming in contour to the outer faceof-a printing form, said receptacle providing a color liquid reservoir,a

sleeve secured to and extending through the outer Wall of the receptacleand providing for discharge of color from the latter, and a depressible,spring controlled valve carriedby said sleevefor normally closing it andadapt ed to normally project in the path of a depressing means thereforto open the sleeve for discharge of color, said receptacle being ofrectangular contour and having its ends inwardly beveled from rear tofront.

7 In combination a printing form having an opening, a receptacleconstituting acolor liquid reservoir positioned in said opening, one ormore sleeves secured in the outer wall of said receptacle to providecolor outlet means, and depressible, spring controlled valves mounted insaid sleeves for normally closing them and projecting beyond the outerface of the form in the pathof a depressing means therefor to open thesleeves for discharge, said opening being of rectangular contour andhaving its end walls oppositely WILLIAM MACDONALD.

